Etiology • A benign fibro-osseous lesion of bone • Cause unknown
Clinical Presentation • Expansile lesion of bone • Cortices intact • May produce deformity, malocclusion, dysfunction • Mandibular lesions are more common than are maxillary.
Radiographic Findings • Well-delineated, smooth contours • Quality varies from lucent to opaque • Margins may be sclerotic. • Can resorb roots and displace teeth • May displace mandibular canal
Clinical Presentation • Expansile lesion of bone • Cortices intact • May produce deformity, malocclusion, dysfunction • Mandibular lesions are more common than are maxillary.
Radiographic Findings • Well-delineated, smooth contours • Quality varies from lucent to opaque • Margins may be sclerotic. • Can resorb roots and displace teeth • May displace mandibular canal
Microscopic Findings • Fibrovascular stroma • Islands/trabeculae of osteoid, woven bone • Cementum droplets may be present.
Diagnosis • Correlation of histologic and radiographic findings
Differential Diagnosis: Radiographic • Odontogenic cyst • Giant cell lesion • Odontogenic tumor
Differential Diagnosis: Histologic • Fibrous dysplasia (must have clinical-pathologic correlation)
Treatment • Conservative excision • Enucleation with peripheral bony curettage Prognosis • Excellent